Searched for: department%3A%22Electrical%255C%252BSustainable%255C%252BEnergy%22
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Chandra Mouli, G.R. (author), Van Der Meer, Dennis (author), Bauer, P. (author), Zeman, M. (author), Schijffelen, Jos H. (author), van den Heuvel, Mike (author), Kardolus, Menno (author)
abstract 2017
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Winiwarter, Wilfried (author), Palensky, P. (author)
book chapter 2023
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Giannakopoulos, G. (author), Perilla Guerra, A.D. (author), Rueda, José L. (author), Palensky, P. (author), Gonzalez-Longatt, Francisco (author)
Modernization of power systems leads to more power electronic interfaced units in the generation, demand, and transmission. Examples are remotely installed renewable energy sources, loads with constant power, or high voltage direct current (HVDC) corridors. These changes significantly affect the frequency stability margins of the system and...
book chapter 2023
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Ingenito, A. (author), Isabella, O. (author), Zeman, M. (author)
The need for cost reduction requires using less raw material and cost-effective processes without sacrificing the conversion efficiency. For keeping high the generated photo-current, an advanced light trapping scheme for ultra-thin silicon wafers is here proposed, exhibiting absorptances up to 99% of 4n2 classical absorption limit for wafer...
conference paper 2014
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Hart, K. (author), McDonald, A. (author), Polinder, H. (author), Corr, E. (author), Carroll, J. (author)
This paper investigates geared and direct-drive permanent magnet generators for a typical offshore wind turbine, providing a detailed comparison of various wind turbine drivetrain configurations in order to minimise the Cost of Energy. The permanent magnet generator topologies considered include a direct-drive machine and single stage, two-stage...
conference paper 2014
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Xue, H. (author), Popov, M. (author)
Large transient overvoltages are normally caused by vacuum circuit breaker (VCB) switching operation during disconnection of induction motors. In this paper VCBs, cables, generators, busbars, induction motors and surge arresters are modeled by making use of ATP-EMTP. Switching transient overvoltages of four typical induction motors are analyzed...
conference paper 2013
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Bang, D. (author), Polinder, H. (author), Shrestha, G. (author), Ferreira, J.A. (author)
conference paper 2009
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Isabella, O. (author), Battaglia, C. (author), Ballif, C. (author), Zeman, M. (author)
Nano-scale randomly textured front transparent oxides are superposed on micro-scale etched glass substrates to form modulated surface textures. The resulting enhanced light scattering is implemented in single and double junction thin-film silicon solar cells.
conference paper 2012
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Shrestha, G. (author), Polinder, H. (author), Bang, D. (author), Jassal, A.K. (author), Ferreira, J.A. (author)
A direct drive generator used in wind turbine has high energy yield compared to other drivetrain topologies and low maintenance is expected as the technology matures. On the other hand direct drive generator weight and size increases rapidly when scaled up to larger units. This paper will investigate the possibility of weight reduction of large...
conference paper 2009
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Popov, M. (author), Rietveld, G. (author), Radojevic, Z. (author), Terzija, V. (author)
This paper presents a fault location algorithm that can be used to accurately locate the fault at any place along mixed line-cable transmission corridors. The algorithm is an impedance based line/cable parameter dependent algorithm. The fault location algorithm is derived using distributed line model, modal transformation theory and Discrete...
conference paper 2013
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Kostopoulos, D. (author), Liu, D. (author), Genani, G. (author), Polinder, H. (author)
Offshore wind is considered a vital component of the future large scale renewable generation portfolio. Intense R&D effort is occurring in both the technology and the supply chain aiming at cost reduction. The drivetrain of wind turbines is an area of continuous evolution with currently no one standard configuration in the industry. It is...
conference paper 2013
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Shekhar, A. (author), Klerks, S. (author), Bauer, P. (author), Prasanth, V. (author)
One of the first of its kind, a pilot project involving the instalment of solar roads in Krommenie, was successfully implemented by the consortium of the province of North Holland, TNO, Ooms and Imtech. Seen as a living lab for knowledge gathering in this nascent application area, with a potential of widening the proliferation of PV technologies...
conference paper 2015
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Ani, S.O. (author), Polinder, H. (author), Ferreira, J.A. (author), Ockels, W.J. (author)
This paper discusses the possibilities of applying high temperature superconducting (HTS) synchronous motor to Superbus, an alternative and sustainable type of public transportation developed at TU Delft. Two important factors within the Superbus drive that influence the operating range are weight and efficiency: increasing the weight results in...
conference paper 2009
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Fragoso Rodrigues, S.M. (author), Bauer, P. (author), Bosman, P.A.N. (author), Pierik, J. (author)
Offshore wind farms with high installed capacities and located further from the shore are starting to be built by northern European countries. Furthermore, it is expected that by 2020, several dozens of large offshore wind farms will be built in the Baltic, Irish and North seas. These wind farms will be constituted of a considerable number of...
conference paper 2014
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Zuijderduin, R. (author), Chevtchenko, O. (author), Smit, J.J. (author), Aanhaanen, G. (author), Ross, R. (author)
The electricity grid of the Netherlands is changing. There is a call of society to use more underground cables, less overhead lines (OHL) and to reduce magnetic emissions. At the same time, parts of the future transmission grid need strengthening depending on the electricity demand in the coming decades [1]. Novel high temperature superconductor...
conference paper 2014
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Brink, E. (author), Gerber, M. (author), De Boer, A. (author), Van der Geest, M. (author), Zeilstra, D. (author)
Starter/generator units based on PM machines are generally not considered due to their inherent safety risks. This technology can, however, prove advantageous for aerospace applications where mass, volume, efficiency and low maintenance costs play a significant role. A safety analysis is performed in order to identify the safety and mitigation...
conference paper 2015
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Skaloumpakas, K. (author), Boemer, J.C. (author), Van Ruitenbeek, E. (author), Gibescu, M. (author)
The installed capacity of photovoltaic (PV) systems connected to low voltage (LV) networks in Germany has increased to more than 25 GW. Current grid codes still mandate these PV systems to disconnect in case of voltage dips below 0.8 p.u. The resulting response of LV distribution systems with high penetration of PV systems to faults in the...
conference paper 2014
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Latka, J.F. (author)
The article presents two contemporary projects of paper structures relief architecture designed and built by Shigeru Ban Architects and Voluntary Architect Network. Author of the article took part in design and construction process of one of the projects. The project of Yaan Nursery School, which was built from November 2013 till March 2014 is...
conference paper 2014
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Rodrigues, S. (author), Bauer, P. (author), Pierik, J. (author)
Although, only in recent years, northern European countries started to install large offshore wind farms, it is expected that by 2020, several dozens of far and large offshore wind farms (FLOWFs) will be built. These FLOWFs will be constituted of a considerable amount of wind turbines (WTs) packed together, leading to an energy density increase....
conference paper 2013
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Palazzo, M. (author), Popov, M. (author), Marmolejo, A. (author), Delfanti, M. (author)
The requirements imposed on generator circuitbreakers greatly differ from the requirements imposed on other transmission and distribution circuit-breakers. Due to the location of installation between the generator and the associated step-up transformer, a generator circuit-breaker must meet high technical requirements with respect to rated...
conference paper 2015
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